<template>
  <div id="app">
    <div>
       <!-- 编号<input type="text" v-model.number="id"> -->
        品牌名：<input type="text" v-model.trim="name">
        <!-- 创立时间<input type="text" v-model="time"> -->
        <button @click="addFn">添加</button>
    </div>

    <table class="tb">

      <tr>
        <th>编号</th>
        <th>品牌名称</th>
        <th>创立时间</th>
        <th>操作</th>
      </tr>
      <!-- 循环渲染的元素tr -->
      <tr v-for="(item,index) in list" :key="item.id">
        <td>{{item.id}}</td>
        <td>{{item.name}}</td>
        <td>{{item.time}}</td>
        <td>
          <button @click="delFn(index)">删除</button>
        </td>
      </tr>
      <tr>
        <td colspan="4" v-if="this.list.length===0">没有数据咯~</td>
      </tr>
    </table>
  </div>
</template>

<script>
import moment from 'moment'
export default {
  data () {
    return {
      list: [
        { id: 1, name: '奔驰', time: '2020-08-01' },
        { id: 2, name: '宝马', time: '2020-08-02' },
        { id: 3, name: '奥迪', time: '2020-08-03' }
      ],
      name: '',
      time: moment().format('YYYY-MM-DD')
    }
  },
  methods: {
    delFn (i) {
      console.log(this.list.splice(i, 1))
    },

    addFn () {
      if (this.name.trim() !== '') {
        this.list.push({
          id: this.list[this.list.length - 1].id + 1,
          name: this.name,
          time: this.time
        })
      } else {
        alert('必填项不能为空')
      }
    }
  }
}
</script>

<style>
#app {
  width: 600px;
  margin: 10px auto;
}

.tb {
  border-collapse: collapse;
  width: 100%;
}

.tb th {
  background-color: #0094ff;
  color: white;
}

.tb td,
.tb th {
  padding: 5px;
  border: 1px solid black;
  text-align: center;
}

.add {
  padding: 5px;
  border: 1px solid black;
  margin-bottom: 10px;
}
</style>
